linux kernel add alsa

Start the Linux Kernel Configuration tool:

make ARCH=arm CROSS_COMPILE=arm-hisiv300-linux- menuconfig

Select Device Drivers from the main menu.

… … Power management options —> [ ] Networking support —> Device Drivers —> File systems —> Kernel hacking —> … …

Select Sound card support as shown here

… … Graphics support —> <*> Sound card support —> [*] HID Devices —> [*] USB support —> …

Select “Advanced Linux Sound Architecture” as shown here

… … — Sound card support <*> Advanced Linux Sound Architecture —> < > Open Sound System (DEPRECATED) —>

select USB sound devices as shown here

… … [ ] SPI sound devices —> [*] USB sound devices —> <*> ALSA for SoC audio support —> … …

Select USB Audio/MIDI driver as shown here

… … — USB sound devices <*> USB Audio/MIDI driver < > Edirol UA-101/UA-1000 driver … …

This is all required for adding USB host audio support in kernel.